Examples with Simulator org.apache.heron.simulator.Simulator used on opensource projects

Example 6 with Simulator

use of org.apache.heron.simulator.Simulator in project heron by twitter.

the class ComponentJVMOptionsTopology method main.

public static void main(String[] args) throws Exception {
    TopologyBuilder builder = new TopologyBuilder();
    builder.setSpout("word", new TestWordSpout(), 2);
    builder.setBolt("exclaim1", new ExclamationBolt(), 2).shuffleGrouping("word").addConfiguration("test-config", // Sample adding component-specific config
    "test-key");
    Config conf = new Config();
    conf.setDebug(true);
    conf.setMaxSpoutPending(10);
    // TOPOLOGY_WORKER_CHILDOPTS will be a global one
    conf.put(Config.TOPOLOGY_WORKER_CHILDOPTS, "-XX:+HeapDumpOnOutOfMemoryError");
    // For each component, both the global and if any the component one will be appended.
    // And the component one will take precedence
    conf.setComponentJvmOptions("word", "-XX:NewSize=300m");
    conf.setComponentJvmOptions("exclaim1", "-XX:NewSize=300m");
    // component resource configuration
    conf.setComponentCpu("word", 0.5);
    conf.setComponentRam("word", ByteAmount.fromMegabytes(512));
    conf.setComponentDisk("word", ByteAmount.fromMegabytes(512));
    conf.setComponentCpu("exclaim1", 0.5);
    conf.setComponentRam("exclaim1", ByteAmount.fromMegabytes(512));
    conf.setComponentDisk("exclaim1", ByteAmount.fromMegabytes(512));
    // container resource configuration
    conf.setContainerDiskRequested(ByteAmount.fromGigabytes(2));
    conf.setContainerRamRequested(ByteAmount.fromGigabytes(3));
    conf.setContainerCpuRequested(2);
    // Specify the size of RAM padding to per container.
    // Notice, this config will be considered as a hint,
    // and it's up to the packing algorithm to determine whether to apply this hint
    conf.setContainerRamPadding(ByteAmount.fromGigabytes(2));
    if (args != null && args.length > 0) {
        conf.setNumStmgrs(2);
        HeronSubmitter.submitTopology(args[0], conf, builder.createTopology());
    } else {
        Simulator simulator = new Simulator();
        simulator.submitTopology("test", conf, builder.createTopology());
        Utils.sleep(10000);
        simulator.killTopology("test");
        simulator.shutdown();
    }
}